diff mbox series

[net-next,01/15] net: sparx5: add support for lan969x SKU's and core clock

Message ID 20241021-sparx5-lan969x-switch-driver-2-v1-1-c8c49ef21e0f@microchip.com (mailing list archive)
State New, archived
Headers show
Series net: sparx5: add support for lan969x switch device | expand

Commit Message

Daniel Machon Oct. 21, 2024, 1:58 p.m. UTC 
In preparation for lan969x, add lan969x SKU's (Stock Keeping Unit) to
sparx5_target_chiptype and set the core clock frequency for these
throughout. Lan969x only supports a core clock frequency of 328MHz.

Reviewed-by: Steen Hegelund <Steen.Hegelund@microchip.com>
Signed-off-by: Daniel Machon <daniel.machon@microchip.com>
---
 .../ethernet/microchip/sparx5/sparx5_calendar.c    | 17 +++++++++++
 .../net/ethernet/microchip/sparx5/sparx5_main.c    | 14 +++++++++
 .../net/ethernet/microchip/sparx5/sparx5_main.h    | 35 +++++++++++++++-------
 drivers/net/ethernet/microchip/sparx5/sparx5_ptp.c |  6 ++++
 4 files changed, 62 insertions(+), 10 deletions(-)

Comments

Simon Horman Oct. 22, 2024, 8:57 a.m. UTC | #1 
On Mon, Oct 21, 2024 at 03:58:38PM +0200, Daniel Machon wrote:
> In preparation for lan969x, add lan969x SKU's (Stock Keeping Unit) to
> sparx5_target_chiptype and set the core clock frequency for these
> throughout. Lan969x only supports a core clock frequency of 328MHz.
> 
> Reviewed-by: Steen Hegelund <Steen.Hegelund@microchip.com>
> Signed-off-by: Daniel Machon <daniel.machon@microchip.com>

...

> diff --git a/drivers/net/ethernet/microchip/sparx5/sparx5_main.c b/drivers/net/ethernet/microchip/sparx5/sparx5_main.c
> index d1e9bc030c80..f48b5769e1b3 100644
> --- a/drivers/net/ethernet/microchip/sparx5/sparx5_main.c
> +++ b/drivers/net/ethernet/microchip/sparx5/sparx5_main.c
> @@ -475,6 +475,20 @@ static int sparx5_init_coreclock(struct sparx5 *sparx5)
>  		else if (sparx5->coreclock == SPX5_CORE_CLOCK_250MHZ)
>  			freq = 0; /* Not supported */
>  		break;
> +	case SPX5_TARGET_CT_LAN9694:
> +	case SPX5_TARGET_CT_LAN9691VAO:
> +	case SPX5_TARGET_CT_LAN9694TSN:
> +	case SPX5_TARGET_CT_LAN9694RED:
> +	case SPX5_TARGET_CT_LAN9696:
> +	case SPX5_TARGET_CT_LAN9692VAO:
> +	case SPX5_TARGET_CT_LAN9696TSN:
> +	case SPX5_TARGET_CT_LAN9696RED:
> +	case SPX5_TARGET_CT_LAN9698:
> +	case SPX5_TARGET_CT_LAN9693VAO:
> +	case SPX5_TARGET_CT_LAN9698TSN:
> +	case SPX5_TARGET_CT_LAN9698RED:
> +		freq = SPX5_CORE_CLOCK_328MHZ;
> +		break;

Hi Daniel,

It is addressed in patch 12/15, but until then pol_upd_int will
be used uninitialised later on in this function when this case it hit.

Flagged by Smatch.

>  	default:
>  		dev_err(sparx5->dev, "Target (%#04x) not supported\n",
>  			sparx5->target_ct);

...
diff mbox series

Patch

diff --git a/drivers/net/ethernet/microchip/sparx5/sparx5_calendar.c b/drivers/net/ethernet/microchip/sparx5/sparx5_calendar.c
index b2a8d04ab509..1ae56194637f 100644
--- a/drivers/net/ethernet/microchip/sparx5/sparx5_calendar.c
+++ b/drivers/net/ethernet/microchip/sparx5/sparx5_calendar.c
@@ -53,6 +53,22 @@  static u32 sparx5_target_bandwidth(struct sparx5 *sparx5)
 	case SPX5_TARGET_CT_7558:
 	case SPX5_TARGET_CT_7558TSN:
 		return 201000;
+	case SPX5_TARGET_CT_LAN9691VAO:
+		return 46000;
+	case SPX5_TARGET_CT_LAN9694RED:
+	case SPX5_TARGET_CT_LAN9694TSN:
+	case SPX5_TARGET_CT_LAN9694:
+		return 68000;
+	case SPX5_TARGET_CT_LAN9696RED:
+	case SPX5_TARGET_CT_LAN9696TSN:
+	case SPX5_TARGET_CT_LAN9692VAO:
+	case SPX5_TARGET_CT_LAN9696:
+		return 88000;
+	case SPX5_TARGET_CT_LAN9698RED:
+	case SPX5_TARGET_CT_LAN9698TSN:
+	case SPX5_TARGET_CT_LAN9693VAO:
+	case SPX5_TARGET_CT_LAN9698:
+		return 101000;
 	default:
 		return 0;
 	}
@@ -74,6 +90,7 @@  static u32 sparx5_clk_to_bandwidth(enum sparx5_core_clockfreq cclock)
 {
 	switch (cclock) {
 	case SPX5_CORE_CLOCK_250MHZ: return 83000; /* 250000 / 3 */
+	case SPX5_CORE_CLOCK_328MHZ: return 109375; /* 328000 / 3 */
 	case SPX5_CORE_CLOCK_500MHZ: return 166000; /* 500000 / 3 */
 	case SPX5_CORE_CLOCK_625MHZ: return  208000; /* 625000 / 3 */
 	default: return 0;
diff --git a/drivers/net/ethernet/microchip/sparx5/sparx5_main.c b/drivers/net/ethernet/microchip/sparx5/sparx5_main.c
index d1e9bc030c80..f48b5769e1b3 100644
--- a/drivers/net/ethernet/microchip/sparx5/sparx5_main.c
+++ b/drivers/net/ethernet/microchip/sparx5/sparx5_main.c
@@ -475,6 +475,20 @@  static int sparx5_init_coreclock(struct sparx5 *sparx5)
 		else if (sparx5->coreclock == SPX5_CORE_CLOCK_250MHZ)
 			freq = 0; /* Not supported */
 		break;
+	case SPX5_TARGET_CT_LAN9694:
+	case SPX5_TARGET_CT_LAN9691VAO:
+	case SPX5_TARGET_CT_LAN9694TSN:
+	case SPX5_TARGET_CT_LAN9694RED:
+	case SPX5_TARGET_CT_LAN9696:
+	case SPX5_TARGET_CT_LAN9692VAO:
+	case SPX5_TARGET_CT_LAN9696TSN:
+	case SPX5_TARGET_CT_LAN9696RED:
+	case SPX5_TARGET_CT_LAN9698:
+	case SPX5_TARGET_CT_LAN9693VAO:
+	case SPX5_TARGET_CT_LAN9698TSN:
+	case SPX5_TARGET_CT_LAN9698RED:
+		freq = SPX5_CORE_CLOCK_328MHZ;
+		break;
 	default:
 		dev_err(sparx5->dev, "Target (%#04x) not supported\n",
 			sparx5->target_ct);
diff --git a/drivers/net/ethernet/microchip/sparx5/sparx5_main.h b/drivers/net/ethernet/microchip/sparx5/sparx5_main.h
index 364ae92969bc..f117cf65cf8c 100644
--- a/drivers/net/ethernet/microchip/sparx5/sparx5_main.h
+++ b/drivers/net/ethernet/microchip/sparx5/sparx5_main.h
@@ -26,16 +26,28 @@ 
 
 /* Target chip type */
 enum spx5_target_chiptype {
-	SPX5_TARGET_CT_7546    = 0x7546,  /* SparX-5-64  Enterprise */
-	SPX5_TARGET_CT_7549    = 0x7549,  /* SparX-5-90  Enterprise */
-	SPX5_TARGET_CT_7552    = 0x7552,  /* SparX-5-128 Enterprise */
-	SPX5_TARGET_CT_7556    = 0x7556,  /* SparX-5-160 Enterprise */
-	SPX5_TARGET_CT_7558    = 0x7558,  /* SparX-5-200 Enterprise */
-	SPX5_TARGET_CT_7546TSN = 0x47546, /* SparX-5-64i Industrial */
-	SPX5_TARGET_CT_7549TSN = 0x47549, /* SparX-5-90i Industrial */
-	SPX5_TARGET_CT_7552TSN = 0x47552, /* SparX-5-128i Industrial */
-	SPX5_TARGET_CT_7556TSN = 0x47556, /* SparX-5-160i Industrial */
-	SPX5_TARGET_CT_7558TSN = 0x47558, /* SparX-5-200i Industrial */
+	SPX5_TARGET_CT_7546       = 0x7546,  /* SparX-5-64  Enterprise */
+	SPX5_TARGET_CT_7549       = 0x7549,  /* SparX-5-90  Enterprise */
+	SPX5_TARGET_CT_7552       = 0x7552,  /* SparX-5-128 Enterprise */
+	SPX5_TARGET_CT_7556       = 0x7556,  /* SparX-5-160 Enterprise */
+	SPX5_TARGET_CT_7558       = 0x7558,  /* SparX-5-200 Enterprise */
+	SPX5_TARGET_CT_7546TSN    = 0x47546, /* SparX-5-64i Industrial */
+	SPX5_TARGET_CT_7549TSN    = 0x47549, /* SparX-5-90i Industrial */
+	SPX5_TARGET_CT_7552TSN    = 0x47552, /* SparX-5-128i Industrial */
+	SPX5_TARGET_CT_7556TSN    = 0x47556, /* SparX-5-160i Industrial */
+	SPX5_TARGET_CT_7558TSN    = 0x47558, /* SparX-5-200i Industrial */
+	SPX5_TARGET_CT_LAN9694    = 0x9694,  /* lan969x-40 */
+	SPX5_TARGET_CT_LAN9691VAO = 0x9691,  /* lan969x-40-VAO */
+	SPX5_TARGET_CT_LAN9694TSN = 0x9695,  /* lan969x-40-TSN */
+	SPX5_TARGET_CT_LAN9694RED = 0x969A,  /* lan969x-40-RED */
+	SPX5_TARGET_CT_LAN9696    = 0x9696,  /* lan969x-60 */
+	SPX5_TARGET_CT_LAN9692VAO = 0x9692,  /* lan969x-65-VAO */
+	SPX5_TARGET_CT_LAN9696TSN = 0x9697,  /* lan969x-60-TSN */
+	SPX5_TARGET_CT_LAN9696RED = 0x969B,  /* lan969x-60-RED */
+	SPX5_TARGET_CT_LAN9698    = 0x9698,  /* lan969x-100 */
+	SPX5_TARGET_CT_LAN9693VAO = 0x9693,  /* lan969x-100-VAO */
+	SPX5_TARGET_CT_LAN9698TSN = 0x9699,  /* lan969x-100-TSN */
+	SPX5_TARGET_CT_LAN9698RED = 0x969C,  /* lan969x-100-RED */
 };
 
 enum sparx5_port_max_tags {
@@ -192,6 +204,7 @@  struct sparx5_port {
 enum sparx5_core_clockfreq {
 	SPX5_CORE_CLOCK_DEFAULT,  /* Defaults to the highest supported frequency */
 	SPX5_CORE_CLOCK_250MHZ,   /* 250MHZ core clock frequency */
+	SPX5_CORE_CLOCK_328MHZ,   /* 328MHZ core clock frequency */
 	SPX5_CORE_CLOCK_500MHZ,   /* 500MHZ core clock frequency */
 	SPX5_CORE_CLOCK_625MHZ,   /* 625MHZ core clock frequency */
 };
@@ -641,6 +654,8 @@  static inline u32 sparx5_clk_period(enum sparx5_core_clockfreq cclock)
 	switch (cclock) {
 	case SPX5_CORE_CLOCK_250MHZ:
 		return 4000;
+	case SPX5_CORE_CLOCK_328MHZ:
+		return 3048;
 	case SPX5_CORE_CLOCK_500MHZ:
 		return 2000;
 	case SPX5_CORE_CLOCK_625MHZ:
diff --git a/drivers/net/ethernet/microchip/sparx5/sparx5_ptp.c b/drivers/net/ethernet/microchip/sparx5/sparx5_ptp.c
index 9b15e44f9e64..a511f14312f1 100644
--- a/drivers/net/ethernet/microchip/sparx5/sparx5_ptp.c
+++ b/drivers/net/ethernet/microchip/sparx5/sparx5_ptp.c
@@ -38,6 +38,9 @@  static u64 sparx5_ptp_get_1ppm(struct sparx5 *sparx5)
 	case SPX5_CORE_CLOCK_250MHZ:
 		res = 2301339409586;
 		break;
+	case SPX5_CORE_CLOCK_328MHZ:
+		res = 1756832768924;
+		break;
 	case SPX5_CORE_CLOCK_500MHZ:
 		res = 1150669704793;
 		break;
@@ -60,6 +63,9 @@  static u64 sparx5_ptp_get_nominal_value(struct sparx5 *sparx5)
 	case SPX5_CORE_CLOCK_250MHZ:
 		res = 0x1FF0000000000000;
 		break;
+	case SPX5_CORE_CLOCK_328MHZ:
+		res = 0x18604697DD0F9B5B;
+		break;
 	case SPX5_CORE_CLOCK_500MHZ:
 		res = 0x0FF8000000000000;
 		break;